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Finding the Fourth Proportional to 4,855.35, 6,699.75 and 2,865.60

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Solution

The fourth proportional to 4,855.35, 6,699.75 and 2,865.60 is: 3,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.35 : 6,699.75 = 2,865.60 : x
  2. Step 2: Convert to fraction form
    4,855.35/6,699.75 = 2,865.60/x
  3. Step 3: Cross multiply
    4,855.35x = 6,699.75 × 2,865.60
  4. Step 4: Simplify right side
    4,855.35x = 19,198,803.60
  5. Step 5: Solve for x
    x = 19,198,803.60/4,855.35
  6. Step 6: Final answer
    x = 3,954.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.